/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.iso.filter;

import org.jpos.core.Configurable;
import org.jpos.core.Configuration;
import org.jpos.iso.ISOChannel;
import org.jpos.iso.ISOFilter;
import org.jpos.iso.ISOMsg;
import org.jpos.util.LogEvent;
import org.jpos.util.ThroughputControl;

public class ThroughputControlFilter implements ISOFilter, Configurable {
	ThroughputControl tc;

	public ThroughputControlFilter() {
		super();
		tc = null;
	}

	/**
	 * @param cfg <ul>
	 *            <li>transactions</li>
	 *            <li>period (in millis)</li>
	 *            </ul>
	 */
	public void setConfiguration(Configuration cfg) {
		tc = new ThroughputControl(cfg.getInts("transactions"), cfg.getInts("period"));
	}

	public ISOMsg filter(ISOChannel channel, ISOMsg m, LogEvent evt) {
		if (tc != null) {
			long delay = tc.control();
			if (delay > 0L)
				evt.addMessage("ThroughputControl=" + delay);
		}
		return m;
	}
}

